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Submarine Ring of Fire 2004: NW Rota-1 Brimstone2
b"Watch a NOAA video podcast on the Submarine Ring of Fire 2004 (SRoF'04) expedition to the Mariana Arc. Video taken by the ROPOS ROV at the edge of Brimstone Pit near the summit of NW Rota-1 submarine volcano, showed a burst of ash, sulfur, and small rocks from the crater. This type of activity has never before been witnessed and documented on a submarine volcano. Video courtesy of Submarine Ring of Fire 2004 Exploration, NOAA Vents Program, NOAA-OE."